Shutter device for a photographic camera

Details Shutter device for a photographic camera Shutter device for a photographic camera

1977-02-16

1978-09-05

Gellner, Michael L.

354247, 354248, G03B 914, G03B 924, G03B 940, G03B 962

Patent

active

041124502

ABSTRACT:
A shutter device for a photographic camera uses an electromagnetic driving means for moving back and forth shutter blades to admit light rays to the film for a controlled length of time. In spite of the use of the electromagnetic driving means the shutter blades can be driven at the same and high speed. If the electromagnetic driving means is operatively connected to a light intensity measuring circuit, the program-control of exposure can be performed.

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patent: 3059555 (1962-10-01), Kromer et al.
patent: 3176170 (1965-03-01), Fulton et al.
patent: 3427941 (1969-02-01), Metzger
patent: 3563142 (1971-02-01), Harvey
patent: 3696718 (1972-10-01), Tamaka
patent: 3869930 (1975-03-01), Forest
patent: 3927415 (1975-12-01), Petersen
patent: 3945025 (1976-03-01), Stempeck
patent: 4003067 (1977-01-01), Brauning

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